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Security audit

Gitea

Security checks for vulnerabilities and agentic risk

Overview

Gitea actions have clear approval safeguards, but fallback setup executes unverified downloaded code and may install additional agent skills.

Review and explicitly approve a fixed, verified CLI release before allowing fallback installation, including any additional skills it installs. Limit the connected Gitea account's permissions and retain confirmations for changes and deletions. OOMOL mediates requests and manages linked credentials; the downloaded installer and hosted implementation were not verified.

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (3)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
98% confidence
Finding

The supplied command executes an Oomol-hosted installation script rather than performing Gitea operations. No connection between this installer and the declared Gitea functionality is established, so it cannot be treated as a demonstrated supporting implementation detail. The downloaded script's contents and further effects are not visible.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The setup instructions pipe a mutable remote script directly into Bash, with an equivalent download-and-execute pattern for PowerShell, without version pinning or independent integrity verification. Compromise of the distribution endpoint could execute arbitrary code with the agent process's permissions, exposing local files and credentials. The missing-CLI prerequisite reduces exposure but does not remove this supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 147)May include surrounding context.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 168)May include surrounding context.

md
- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources